package com.ui.zhixiao.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.ui.zhixiao.common.R;
import com.ui.zhixiao.domain.Employee;
import com.ui.zhixiao.mapper.EmployeeMapper;
import com.ui.zhixiao.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;
import java.util.regex.PatternSyntaxException;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登录
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {
        //1.将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //2.根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //3.如果没有查询到返回登录失败结果
        if(emp == null){
            return R.error("用户名或密码错误");
        }

        //4.密码比对，不一致则失败
        if(!emp.getPassword().equals(password)){
            return R.error("密码错误");
        }

        //5.查看员工状态是否可用 是否可以登录
        if(emp.getStatus() == 0){
            return R.error("该账号已禁用");
        }

        //6.登录成功 员工id存入session并且返回登录成功结果
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }

    /**
     * 员工退出
     * @param request
     * @return
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    /**
     * 新增员工
     * @param employee
     * @return
     */
    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
        //设置初始密码 员工通过初始密码登录后可以修改自己的密码
        employee.setPassword(DigestUtils.md5DigestAsHex("admin".getBytes()));



        //employee.setCreateTime(LocalDateTime.now());
        //employee.setUpdateTime(LocalDateTime.now());
        //
        ////获取当前用户id
        //Long empId = (Long) request.getSession().getAttribute("employee");
        //employee.setCreateUser(empId);
        //employee.setUpdateUser(empId);



        employeeService.save(employee);
        return R.success("新增员工成功");
    }

    /**
     * 员工信息分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name){
        log.info("page={},pageSize={},name={}",page,pageSize,name);
        //构造分页构造器
        Page<Employee> pageInfo = new Page<>(page,pageSize);

        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();

        //添加过滤条件
        queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);

        //添加排序条件
        queryWrapper.orderByDesc(Employee::getUpdateTime);

        //执行
        employeeService.page(pageInfo,queryWrapper);

        return R.success(pageInfo);
    }


    /**
     * 更新员工信息
     * @param employee
     * @return
     */
    @PutMapping
    public R<String> update(HttpServletRequest request,@RequestBody Employee employee){
        log.info(employee.toString());
        //Long empId = (Long) request.getSession().getAttribute("employee");
        //employee.setUpdateTime(LocalDateTime.now());
        //employee.setUpdateUser(empId);
        employeeService.updateById(employee);

        return R.success("员工信息修改成功");
    }

    /**
     * 根据id查员工信息  修改员工--回显
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        Employee employee = employeeService.getById(id);
        if(employee!=null){
            return R.success(employee);
        }
        return R.error("没有查询到对应员工信息");
    }


}
